Whether someone is using one of the released keys is precisely what I have been trying to check this morning. There are only 8 candidates for this, and thus far the only one that is suspect is the address with ~148,000 XPY in it, #8 on the Rich List:
https://chainz.cryptoid.info/xpy/#!rich
P.S: Personally I see no reason why people would not use these keys, if they work that is. Any notions of honoring what any supposed investors paid for having a Hyperstaking wallet were officially tossed out the window with the seizure/theft/deceptions of such and then the changing of the rules by a handful of shady characters. I see nothing that gives the crooks who say they have exclusive right to use these hyperstaking keys this right at all.
A wallet with 148k coins, staking at 100% rate would gain around 10k/month, or 300+/day. #8 appears closer to 20/day, which is around 5-10%
Yes, it appears to be staking at around 10%. This could be a fluke due to skipping stake for periods of time though. Keep in mind that the private keys were not all 100%/year, there were others as well. Not sure if the 10/20% keys are still functional after the code change on 4/20?
P.S: Here are the keys:
primenoderate=20
primenodekey=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
primenoderate=20
primenodekey=3082011302010104207c1d10e9d7cdcb49e5d9744e34fc28da0f0035e9d8b7ab55dd0e5a2b4959b636a081a53081a2020101302c06072a8648ce3d0101022100fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f300604010004010704410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8022100fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141020101a14403420004ce27308191e2e0274459bb191ba2cb93ef4dc8a838e8e8310083fcf7e2be9c7c20b3b15e2dc2a1482275ee55138c2350771231b00d7740e1e495269987faa24b
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=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
primenoderate=100
primenodekey=308201130201010420eabdf2303ef6029b620894726c9480484c25c2c964a854cb04acd92963a32ea6a081a53081a2020101302c06072a8648ce3d0101022100fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f300604010004010704410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8022100fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141020101a14403420004406932519cd5e47333a049922eb8bcddc6b722c31440f36ca2851e119314b375914b08c635837e47c7cbf6ace95acbadee62acb054551bc4255c81d03c485e95
primenoderate=100
primenodekey=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
primenoderate=10
primenodekey=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 can copy paste them into notepad to view. You will see there are 10 and 20% keys as well as 100% ones.